Is predicted to encode a protein with the following domains: Serpentine type 7TM GPCR chemoreceptor Sri; Short-chain dehydrogenase/reductase SDR; 7TM GPCR, serpentine chemoreceptor class i (Sri); 7TM GPCR, serpentine receptor class r (Str); short chain dehydrogenase; Serpentine type 7TM GPCR chemoreceptor Str; and NAD(P)-binding domain superfamily. Is an ortholog of C. elegans C30G12.2; C55A6.4; and C55A6.6.