User Manual Schlage FE595 CAM 619 GEO Camelot Keypad Entry

No, this is a replacement for the regular door latch and lock. The FE365 is what you need for the deadbolt. I use both. Note: A locksmith can re-core the locks so they all use the same key for the key bypass. I find that simpler than having to keep a bunch of bypass keys.

If you are locking someone in the closet then yes it will work. If you are trying to keep someone out then no it won't. I have it in my kitchen on the door going outside and it is always unlocked. I wanted to be able to lock it so the cats and dog can't open the door and go outside but it doesn't work that way. Luckily I also have a deadbolt on the door that I can lock from the inside.