Predicted to enable several functions, including RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; proteasome binding activity; and ubiquitin binding activity. Involved in embryonic organ development. Predicted to be located in cytoplasm and nucleus. Predicted to be part of XPC complex. Predicted to be active in cytosol and nucleoplasm. Orthologous to human RAD23B (RAD23 homolog B, nucleotide excision repair protein). [provided by Alliance of Genome Resources, Apr 2022]