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