Is predicted to encode a protein with the following domains: Serpentine type 7TM GPCR chemoreceptor Sri; 7TM GPCR, serpentine chemoreceptor class i (Sri); Serpentine type 7TM GPCR chemoreceptor Srh; and 7TM GPCR, serpentine receptor class h (Srh). Is an ortholog of C. elegans srh-201; srh-200; and srh-199.