It's strange, but true: Google doesn't provide an easy tool for Linux to integrate Google Drive. Even stranger considering Google uses Linux a lot for servers, as basis for Android, etc.
Luckily, there is a feature built in to the desktop to access Google Drive. Open the Cloud Storage manager from the menu, add an account, and select Google Drive from the menu. You will be presented with a Google login screen, followed by a screen that asks for the permissions needed to access your Google account. You can also select a folder to use for synchronizing (make sure it isn't in your home directory; Google Drive's space is a lot bigger than your home quota!'