Yes it does, technically, but you need to have a means of telling it where the Q is and, if necessary, data linking that to the mx. You could give it all the gen pre-launch, but you've got a big uncertainty box, which would be dangerous close in with friendlies close by.
Of course, there are similar risks with launching a HOB IR round if it has to go lock after launch. You lose the ability to confirm the mx has the right target before pulling the trigger.
Pitbull with your wingmen around?