Enriched in coelomocyte; germline precursor cell; neurons; and retrovesicular ganglion based on tiling array and microarray studies. Is affected by several genes including rrf-3; eat-2; and elt-2 based on microarray and RNA-seq studies. Is affected by eight chemicals including methylmercuric chloride; multi-walled carbon nanotube; and Psoralens based on microarray and RNA-seq studies.