Predicted to enable identical protein binding activity; platelet-derived growth factor binding activity; and protease binding activity. Predicted to be an extracellular matrix structural constituent. Involved in several processes, including cellular response to growth factor stimulus; cellular response to mechanical stimulus; and cellular response to retinoic acid. Acts upstream of or within collagen-activated tyrosine kinase receptor signaling pathway. Located in several cellular components, including Golgi apparatus; endoplasmic reticulum; and secretory granule. Used to study cholestasis and non-alcoholic fatty liver disease. Biomarker of several diseases, including artery disease (multiple); bladder neck obstruction; liver disease (multiple); pulmonary fibrosis; and ureteral obstruction. Human ortholog(s) of this gene implicated in several diseases, including Ehlers-Danlos syndrome arthrochalasia type 1; aggressive periodontitis; bone disease (multiple); cutaneous leishmaniasis; and dentinogenesis imperfecta. Orthologous to human COL1A1 (collagen type I alpha 1 chain). [provided by Alliance of Genome Resources, Apr 2022]