The missile turret is a weapon featured in Jak 3 during the mission "Destroy barrier with missile". It is a turret stationed at the Port and was used to take down the barrier between the Industrial Section and the Port. Daxter had to ride the missile through pickups before sending the missile towards the barrier.
In a side mission, available after the base mission, Torn assigns Daxter to practice with the missile "in case we need to use it again", however this is the only other time where it is needed. It costs twelve skull gems to undertake with a reward of eighteen precursor orbs with a different, but similar track.
In the cut scene where Daxter jumps on the missile it takes off immediately which means it cannot be aimed.