Enriched in several structures, including ABalaaaala; GLR; ciliated neurons; germ line; and pharyngeal cell based on tiling array; RNA-seq; and single-cell RNA-seq studies. Is affected by several genes including age-1; dpy-10; and hsf-1 based on microarray and RNA-seq studies. Is affected by thirteen chemicals including hydrogen sulfide; rotenone; and mianserin based on microarray and RNA-seq studies.