Predicted to enable arylsulfatase activity and calcium ion binding activity. Acts upstream of or within binding activity of sperm to zona pellucida. Located in plasma membrane. Is integral component of membrane. Is expressed in brain and genitourinary system. Used to study metachromatic leukodystrophy. Human ortholog(s) of this gene implicated in metachromatic leukodystrophy. Orthologous to human ARSA (arylsulfatase A). [provided by Alliance of Genome Resources, Apr 2022]