I would suggest having a friend or relative who the dog is familiar with either drive your dog to someone’s house or if that’s not possible, bring a cage to your reception venue and place the dog in it. Make sure you bring food, a bowl for water and a leash and garbages -- someone will need to walk him at some point.
I can’t imagine that your reception venue will be okay with your dog mingling with your wedding guests so double check with the location manager on what their animal policies are. For instance a couple may be allowed to have their pet bird in a bird cage at the reception.
Another idea is to hire a dog walker or pet sitter to come to your ceremony and take the dog with them back to your home, their's or a pet daycare center. Make sure someone will be able to pick him up either that night or the next day if you are leaving for your honeymoon right after the wedding.
The most important thing is to make sure you have a plan in action and confirm with all involved a few days before the wedding.