Enables calcium-dependent cysteine-type endopeptidase activity and identical protein binding activity. Acts upstream of or within calcium-dependent self proteolysis. Predicted to be located in Golgi apparatus. Predicted to be active in cytoplasm. Is expressed in gut; liver; and male reproductive gland or organ. Orthologous to human CAPN8 (calpain 8). [provided by Alliance of Genome Resources, Apr 2022]