Enriched in AFD; hypodermis; and touch receptor neurons based on tiling array; RNA-seq; and single-cell RNA-seq studies. Is affected by several genes including daf-16; daf-2; and dpy-10 based on microarray; tiling array; and RNA-seq studies. Is affected by fourteen chemicals including Ethanol; 1-methylnicotinamide; and Tunicamycin based on RNA-seq and microarray studies. Human THAP4 enables several functions, including heme binding activity; identical protein binding activity; and peroxynitrite isomerase activity. Is predicted to encode a protein with the following domains: ShK domain-like; Calycin; ShKT domain; THAP4-like, heme-binding beta-barrel domain; and Nitrobindin family. Is an ortholog of human THAP4 (THAP domain containing 4).