Predicted to contribute to TFIIH-class transcription factor complex binding activity. Involved in mRNA transcription by RNA polymerase II. Located in nucleus. Part of transcription factor TFIIE complex. Is expressed in organism. Human ortholog(s) of this gene implicated in nonphotosensitive trichothiodystrophy 6. Orthologous to human GTF2E2 (general transcription factor IIE subunit 2).