Predicted to enable several functions, including DNA binding activity; identical protein binding activity; and single-stranded DNA endodeoxyribonuclease activity. Acts upstream of or within G1/S transition of mitotic cell cycle and blastocyst hatching. Predicted to be located in nucleoplasm. Predicted to be part of transcription repressor complex. Predicted to be active in site of double-strand break. Human ortholog(s) of this gene implicated in Seckel syndrome 2. Orthologous to human RBBP8 (RB binding protein 8, endonuclease). [provided by Alliance of Genome Resources, Apr 2022]