diff --git a/packages/react-dom-bindings/src/client/ReactDOMComponent.js b/packages/react-dom-bindings/src/client/ReactDOMComponent.js
index 070baf4bbd1a5..9a1b0894dd982 100644
--- a/packages/react-dom-bindings/src/client/ReactDOMComponent.js
+++ b/packages/react-dom-bindings/src/client/ReactDOMComponent.js
@@ -58,7 +58,7 @@ import {
 } from './CSSPropertyOperations';
 import {HTML_NAMESPACE, getIntrinsicNamespace} from './DOMNamespaces';
 import {getPropertyInfo} from '../shared/DOMProperty';
-import isCustomComponent from '../shared/isCustomComponent';
+import isCustomElement from '../shared/isCustomElement';
 import possibleStandardNames from '../shared/possibleStandardNames';
 import {validateProperties as validateARIAProperties} from '../shared/ReactDOMInvalidARIAHook';
 import {validateProperties as validateInputProperties} from '../shared/ReactDOMNullInputValuePropHook';
@@ -264,7 +264,7 @@ function setProp(
   tag: string,
   key: string,
   value: mixed,
-  isCustomComponentTag: boolean,
+  isCustomElementTag: boolean,
   props: any,
 ): void {
   switch (key) {
@@ -390,7 +390,7 @@ function setProp(
           warnForInvalidEventListener(key, value);
         }
       } else {
-        if (isCustomComponentTag) {
+        if (isCustomElementTag) {
           if (enableCustomElementPropertySupport) {
             setValueForPropertyOnCustomComponent(domElement, key, value);
           } else {
@@ -653,7 +653,7 @@ export function setInitialProperties(
           }
           // defaultChecked and defaultValue are ignored by setProp
           default: {
-            // TODO: If the `is` prop is specified, this should go through the isCustomComponentTag flow.
+            // TODO: If the `is` prop is specified, this should go through the isCustomElementTag flow.
             setProp(domElement, tag, propKey, propValue, false, props);
           }
         }
@@ -662,8 +662,8 @@ export function setInitialProperties(
     }
   }
 
-  const isCustomComponentTag =
-    enableCustomElementPropertySupport && isCustomComponent(tag, props);
+  const isCustomElementTag =
+    enableCustomElementPropertySupport && isCustomElement(tag, props);
   for (const propKey in props) {
     if (!props.hasOwnProperty(propKey)) {
       continue;
@@ -672,7 +672,7 @@ export function setInitialProperties(
     if (propValue == null) {
       continue;
     }
-    setProp(domElement, tag, propKey, propValue, isCustomComponentTag, props);
+    setProp(domElement, tag, propKey, propValue, isCustomElementTag, props);
   }
 }
 
@@ -949,7 +949,7 @@ export function updateProperties(
           }
           // defaultChecked and defaultValue are ignored by setProp
           default: {
-            // TODO: If the `is` prop is specified, this should go through the isCustomComponentTag flow.
+            // TODO: If the `is` prop is specified, this should go through the isCustomElementTag flow.
             setProp(domElement, tag, propKey, propValue, false, nextProps);
           }
         }
@@ -958,20 +958,13 @@ export function updateProperties(
     }
   }
 
-  const isCustomComponentTag =
-    enableCustomElementPropertySupport && isCustomComponent(tag, nextProps);
+  const isCustomElementTag =
+    enableCustomElementPropertySupport && isCustomElement(tag, nextProps);
   // Apply the diff.
   for (let i = 0; i < updatePayload.length; i += 2) {
     const propKey = updatePayload[i];
     const propValue = updatePayload[i + 1];
-    setProp(
-      domElement,
-      tag,
-      propKey,
-      propValue,
-      isCustomComponentTag,
-      nextProps,
-    );
+    setProp(domElement, tag, propKey, propValue, isCustomElementTag, nextProps);
   }
 }
 
@@ -1357,7 +1350,7 @@ export function diffHydratedProperties(
           extraAttributeNames.add(attributes[i].name);
       }
     }
-    if (isCustomComponent(tag, props)) {
+    if (isCustomElement(tag, props)) {
       diffHydratedCustomComponent(
         domElement,
         tag,
diff --git a/packages/react-dom-bindings/src/events/plugins/ChangeEventPlugin.js b/packages/react-dom-bindings/src/events/plugins/ChangeEventPlugin.js
index 92e36b9171515..baa33f1a7c5c6 100644
--- a/packages/react-dom-bindings/src/events/plugins/ChangeEventPlugin.js
+++ b/packages/react-dom-bindings/src/events/plugins/ChangeEventPlugin.js
@@ -35,7 +35,7 @@ import {
   processDispatchQueue,
   accumulateTwoPhaseListeners,
 } from '../DOMPluginEventSystem';
-import isCustomComponent from '../../shared/isCustomComponent';
+import isCustomElement from '../../shared/isCustomElement';
 
 function registerEvents() {
   registerTwoPhaseEvent('onChange', [
@@ -312,7 +312,7 @@ function extractEvents(
   } else if (
     enableCustomElementPropertySupport &&
     targetInst &&
-    isCustomComponent(targetInst.elementType, targetInst.memoizedProps)
+    isCustomElement(targetInst.elementType, targetInst.memoizedProps)
   ) {
     getTargetInstFunc = getTargetInstForChangeEvent;
   }
diff --git a/packages/react-dom-bindings/src/shared/ReactDOMUnknownPropertyHook.js b/packages/react-dom-bindings/src/shared/ReactDOMUnknownPropertyHook.js
index ca469bc792690..64dc7126ad6d4 100644
--- a/packages/react-dom-bindings/src/shared/ReactDOMUnknownPropertyHook.js
+++ b/packages/react-dom-bindings/src/shared/ReactDOMUnknownPropertyHook.js
@@ -7,7 +7,7 @@
 
 import {BOOLEAN, getPropertyInfo} from './DOMProperty';
 import {ATTRIBUTE_NAME_CHAR} from './isAttributeNameSafe';
-import isCustomComponent from './isCustomComponent';
+import isCustomElement from './isCustomElement';
 import possibleStandardNames from './possibleStandardNames';
 import hasOwnProperty from 'shared/hasOwnProperty';
 import {enableCustomElementPropertySupport} from 'shared/ReactFeatureFlags';
@@ -308,7 +308,7 @@ function warnUnknownProperties(type, props, eventRegistry) {
 }
 
 export function validateProperties(type, props, eventRegistry) {
-  if (isCustomComponent(type, props)) {
+  if (isCustomElement(type, props)) {
     return;
   }
   warnUnknownProperties(type, props, eventRegistry);
diff --git a/packages/react-dom-bindings/src/shared/isCustomComponent.js b/packages/react-dom-bindings/src/shared/isCustomElement.js
similarity index 89%
rename from packages/react-dom-bindings/src/shared/isCustomComponent.js
rename to packages/react-dom-bindings/src/shared/isCustomElement.js
index 9ea9ead2a2f0f..f3e03e000030c 100644
--- a/packages/react-dom-bindings/src/shared/isCustomComponent.js
+++ b/packages/react-dom-bindings/src/shared/isCustomElement.js
@@ -7,7 +7,7 @@
  * @flow
  */
 
-function isCustomComponent(tagName: string, props: Object): boolean {
+function isCustomElement(tagName: string, props: Object): boolean {
   if (tagName.indexOf('-') === -1) {
     return typeof props.is === 'string';
   }
@@ -30,4 +30,4 @@ function isCustomComponent(tagName: string, props: Object): boolean {
   }
 }
 
-export default isCustomComponent;
+export default isCustomElement;