No. It does not operate the side doors.
The smart fob I have, for the same year as your model, is rectangular.
Has three buttons, lock and unlock, and tailgate.
On the back it has SMART DOOR LOCK. Capitals as per on the fob.
But it is much smarter than that. The van can sense it when near and unlock the vehicle as you approach (including the side doors).
If you walk away from the van with the fob in your pocket, the van will lock.
I also think you cannot lock the unit in the van.
It probably does a lot more, but those are the only features I am aware of.
The immobiliser key should open close the sliding doors, if the dash switch is enabled.
My immobiliser key has four buttons, Lock, unlock, and each power door.
Good Luck.