May play a role in processing or organization of cuticle collagen proteins, including rol-6 and col-19. Localizes in stripes along the cuticle. Expressed from the 3-fold embryonic stage to young adult and at the larval stage in hypodermal and intestinal cells. The ShKT and Thr-rich domains are required for body morphogenesis. RNAi-mediated knockdown results in a slightly shorter and stouter body. Belongs to the peptidase M14 family.