Probable cuticular collagen-like protein (Probable). Nematode cuticles are composed largely of collagen-like proteins (Probable). The cuticle functions both as an exoskeleton and as a barrier to protect the worm from its environment (Probable). Acts downstream of the Wnt signaling pathway; perhaps in the formation of the adult cuticle (PubMed:24569038). Required for proper strut formation within the unique medial layer of the adult cuticle (Ref.2). Collagen polypeptide chains are complexed within the cuticle by disulfide bonds and other types of covalent cross-links. Expressed in hypodermal cells and seam cells, in the larval L4 stage, and in the young adult (PubMed:24569038). Not expressed in the cells of the developing vulva (PubMed:24569038). May be processed for secretion by bli-4. RNAi-mediated knockdown causes accumulations of fluid, known as blistering, in the cuticle (PubMed:24569038). Hypodermal or cuticular rupture, typically in the anterior body region (PubMed:24569038). Defects in cuticle integrity (PubMed:24569038). Belongs to the cuticular collagen family.