Yes, if GPS is ok, you are more than 20m from home point and you set it to that option in the Go4 app.
It will RTH if the home point is set, whether the recorded one at take off, or if it's reset on the move.
If between 5m and 20m of home point, the behaviour is different, best read the manual section on that.
The MP / MPP also has the option to hover if signal lost (handy in tight places, in forest under canopy, inside old building etc) . . .
Or you can set it to land immediately, my least favoured option as you don't know what the heck is under you for a forced landing.
You can set this in your Go4 options menu, just go take a look through and you should find it ok.
Most stuff is in the manual, just have a look around menus and learn what's there in settings . . .