It may be a version of a "magnetic push latch or a magnetic lathc with a mechanical detent as shown below.
If so, this is not "electronic per se but does use magnetism.
In the ones shown below the end is spring loaded can be pushed in if extended and will then latch "in". If pushed again it will releases the latch and spring out when pressure is released. Used in conjunction with a magnetic material plate, with the latch on an eg cupboard body and plate on a door you can get push home to close / push again to open doors.
In your one the small tip MAY press in but not latch. If so this may be a small wall mounted magnet to attract a plate in a door with the tip providing centering. Or not.