The app can be used to install or update the Google Play services.
To fix "Google Play Services has stopped" errors, try opening the app info dialog and select "clear cache". If that does not work, try the "uninstall updates" option. Then download and re-install the latest version of the Google Play services using the Play Store link.
In the new "Details" view you can also check the status of the Google Play Store, Instant Apps, Google Services Framework, and Google Account Manager.
Please note: Play Services Info is not affiliated with Google LLC.