Enriched in carbon dioxide sensory neurons; cholinergic neurons; germline precursor cell; hypodermis; and intestine based on tiling array; RNA-seq; single-cell RNA-seq; and microarray studies. Is affected by several genes including daf-16; daf-2; and skn-1 based on microarray; RNA-seq; and tiling array studies. Is affected by thirty-one chemicals including methylmercury hydroxide; 1-methylnicotinamide; and nicotinic acid based on RNA-seq and microarray studies.