Predicted to enable heparin binding activity. Predicted to be an extracellular matrix structural constituent. Acts upstream of or within endochondral ossification and morphogenesis of a branching structure. Located in cell-cell junction. Is expressed in several structures, including genitourinary system; heart and pericardium; jaw; musculoskeletal system; and respiratory system. Used to study congenital myasthenic syndrome 19. Human ortholog(s) of this gene implicated in congenital myasthenic syndrome 19. Orthologous to human COL13A1 (collagen type XIII alpha 1 chain). [provided by Alliance of Genome Resources, Apr 2022]