Predicted to be an extracellular matrix structural constituent. Acts upstream of or within collagen fibril organization and negative regulation of cell population proliferation. Located in collagen-containing extracellular matrix. Is expressed in body wall mesenchyme; germ cell of testis; lip; and musculoskeletal system. Orthologous to human DPT (dermatopontin). [provided by Alliance of Genome Resources, Apr 2022]