Let the server know you have an "allergy"/celiac and they will let the kitchen know- they take it seriously. They have gluten free soy sauce and can do fried rice or rice noodles(huge portions) and there are also sushi/raw options
I’ve been here several times and each time I have a waiter or waitress that helps me out and always delivers a delicious gf meal. They have Tamari brand soy sauce that they can prepare your meal with or for dipping your sushi in. No separate menu though, you just have to ask what they can do for you.