Google Play services is used to update Google apps and apps from Google Play.
Apps may not work if you uninstall Google Play services. It speeds up offline searches, provides more immersive maps, and improves gaming experiences. This component provides core functionality like authentication to your Google services, synchronized contacts, access to all the latest user privacy settings, and higher quality, lower-powered location-based services. It is used to update Google apps and apps from Google Play and most apps are using google play services every day. Google Play services is an essential background system service to help your apps work smoothly.