Predicted to enable endopeptidase activity. Acts upstream of or within activation of cysteine-type endopeptidase activity involved in apoptotic process and extrinsic apoptotic signaling pathway via death domain receptors. Located in cytoplasm. Is expressed in brain; liver; nose; and urinary system. Orthologous to human PIDD1 (p53-induced death domain protein 1). [provided by Alliance of Genome Resources, Apr 2022]