Is predicted to encode a protein with the following domains: B30.2/SPRY domain superfamily; SPRY domain; SAP domain; P-loop containing nucleoside triphosphate hydrolase; AAA domain; and Concanavalin A-like lectin/glucanase domain superfamily. Is an ortholog of C. elegans tofu-2. In C. elegans, tofu-2 is involved in primary piRNA processing.