Predicted to enable calcium ion binding activity; identical protein binding activity; and serine-type endopeptidase activity. Predicted to be involved in zymogen activation. Predicted to be active in blood microparticle. Human ortholog(s) of this gene implicated in Ehlers-Danlos syndrome periodontal type 1. Orthologous to human C1R (complement C1r). [provided by Alliance of Genome Resources, Apr 2022]