Is predicted to encode a protein with the following domains: Glutathione S-transferase, N-terminal domain; Serpentine type 7TM GPCR chemoreceptor Srh; Thioredoxin-like superfamily; 7TM GPCR, serpentine receptor class h (Srh); and Glutathione S-transferase, N-terminal. Is an ortholog of C. elegans gsto-1. In C. elegans, gsto-1 is involved in detoxification of inorganic compound and response to superoxide.