Enriched in body wall muscle cell; cephalic sheath cell; excretory cell; intestine; and neurons based on tiling array; RNA-seq; and single-cell RNA-seq studies. Is affected by several genes including cyc-1; hyl-2; and swsn-1 based on microarray; tiling array; and RNA-seq studies. Is affected by twenty-two chemicals including Nitric Oxide; methylmercuric chloride; and Mercuric Chloride based on RNA-seq and microarray studies.