Predicted to enable sphingosine-1-phosphate phosphatase activity. Predicted to be involved in dephosphorylation. Predicted to act upstream of or within negative regulation of myotube differentiation. Predicted to be located in endoplasmic reticulum membrane. Predicted to be integral component of membrane. Predicted to be active in membrane and nuclear envelope. Orthologous to human PLPP7 (phospholipid phosphatase 7 (inactive)). [provided by Alliance of Genome Resources, Apr 2022]