Enriched in several structures, including PLM; germline precursor cell; hypodermis; interfacial epithelial cell; and somatic gonad precursor based on tiling array; RNA-seq; and single-cell RNA-seq studies. Is affected by several genes including daf-16; daf-2; and skn-1 based on microarray; RNA-seq; and proteomic studies. Is affected by nineteen chemicals including aldicarb; D-glucopyranose; and D-glucose based on microarray; RNA-seq; and proteomic 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: THAP4-like, heme-binding beta-barrel domain; Calycin; and Nitrobindin family. Is an ortholog of human THAP4 (THAP domain containing 4).