Enables TFIID-class transcription factor complex binding activity and promoter-specific chromatin binding activity. Acts upstream of or within DNA repair; UV protection; and regulation of autophagy. Predicted to be located in chromosome, telomeric region and nucleus. Predicted to be part of ERCC4-ERCC1 complex and nucleotide-excision repair factor 1 complex. Is expressed in central nervous system and retina. Used to study xeroderma pigmentosum group F. Human ortholog(s) of this gene implicated in Fanconi anemia complementation group Q; XFE progeroid syndrome; pancreatic cancer; xeroderma pigmentosum; and xeroderma pigmentosum group F. Orthologous to human ERCC4 (ERCC excision repair 4, endonuclease catalytic subunit). [provided by Alliance of Genome Resources, Apr 2022]