Predicted to enable several functions, including SUMO polymer binding activity; cysteine-type endopeptidase activator activity involved in apoptotic process; and identical protein binding activity. Predicted to be involved in activation of cysteine-type endopeptidase activity involved in apoptotic process; cell surface receptor signaling pathway; and cellular response to mechanical stimulus. Located in cytoplasm and nucleus. Orthologous to human CASP8AP2 (caspase 8 associated protein 2). [provided by Alliance of Genome Resources, Apr 2022]