Can a mini van hull a boat?

did you mean "haul", as in carry a boat inside or on top?
or "tow"?
And did you mean without the minivan breaking down?
or without the boat breaking down? sorry couldn't resist.

look in the owners manual, it'll tell give you the maximum weight your van can pull, or else it'll say, "your vehicle is not designed to tow a trailer."

stay well within the towing limits. use a frame-mounted hitch receiver.

and, unless it's fitted with an external transmission cooler, expect that towing will shorten the life of your transmission.

I don't know if it can hull it, but it should be able to haul it or pull it.

Sure It Can Hull A Boat

Yes, with a transmission cooler installed.