Predicted to contribute to collagen binding activity. Acts upstream of or within peptidyl-proline hydroxylation to 3-hydroxy-L-proline and spermatogenesis. Located in endoplasmic reticulum. Is expressed in several structures, including dermis; genitourinary system; heart; rib; and stomach. Used to study osteogenesis imperfecta type 7. Human ortholog(s) of this gene implicated in osteogenesis imperfecta type 7. Orthologous to human CRTAP (cartilage associated protein). [provided by Alliance of Genome Resources, Apr 2022]