What GT bike is this?
Doesn't look anything special - theres a one-piece crank, indicates a cheap low-grade bike.

The brakes are cantilevers which would be 90s at best.

The tyres will have been replaced at some time, so brand means nothing to the bike's model

The whole front wheel looks like its been swapped out for one of those hilltopper electric kits, which are not bad for a simple-fit kit.  Batteries tend to be expensive.

The whole bike looks like an overgrown BMX with a derailleur and rider bars with a reinforcement strut.