Serine protease with chymotryptic and collagenolytic activities. Preferential cleavage: Tyr-|-Xaa, Trp-|-Xaa, Phe-|-Xaa, Leu-|-Xaa. Expressed in larval carcasses and gut, and adult gut. Ovarial and mature eggs, larvae and adult. Belongs to the peptidase S1 family.