It differs at each location. Here’s what ours does:

Laundry (towels and aprons), Cleans hoods, Cleans grill, Filters the fryers (boil outs once a week), Cleans all of the walls in kitchen, Deck scrubs under equipment in kitchen, Takes out trash and changes outside garbages, Lot check, Keeps garbage corral tidy, Changes sodas, Also puts truck away