Enriched in cephalic sheath cell; dopaminergic neurons; germ line; and intestine based on tiling array and RNA-seq studies. Is affected by several genes including skn-1; eat-2; and elt-2 based on microarray; tiling array; and RNA-seq studies. Is affected by nine chemicals including Psoralens; allantoin; and metformin based on RNA-seq and microarray studies.