Predicted to enable sphingomyelin phosphodiesterase D activity and sphingomyelin phosphodiesterase activity. Predicted to be involved in several processes, including cellular response to tumor necrosis factor; ceramide biosynthetic process; and phospholipid catabolic process. Predicted to act upstream of or within in utero embryonic development. Predicted to be located in several cellular components, including nuclear outer membrane; sarcolemma; and trans-Golgi network. Orthologous to human SMPD4 (sphingomyelin phosphodiesterase 4). [provided by Alliance of Genome Resources, Apr 2022]