Predicted to enable several functions, including 5'-3' DNA helicase activity; protein C-terminus binding activity; and protein N-terminus binding activity. Acts upstream of or within several processes, including animal organ development; neurogenesis; and nucleic acid metabolic process. Located in nucleus. Is expressed in central nervous system; eye; hair follicle; and liver. Used to study photosensitive trichothiodystrophy and xeroderma pigmentosum group D. Human ortholog(s) of this gene implicated in several diseases, including acoustic neuroma; acquired immunodeficiency syndrome; carcinoma (multiple); hematologic cancer (multiple); and xeroderma pigmentosum (multiple). Orthologous to human ERCC2 (ERCC excision repair 2, TFIIH core complex helicase subunit). [provided by Alliance of Genome Resources, Apr 2022]