Enables calcium-dependent protein binding activity; metal ion binding activity; and protein homodimerization activity. Involved in response to calcium ion. Acts upstream of or within activation of cysteine-type endopeptidase activity involved in apoptotic process and apoptotic process. Located in cytoplasm. Orthologous to human PDCD6 (programmed cell death 6). [provided by Alliance of Genome Resources, Apr 2022]