Predicted to enable DNA binding activity; chromatin binding activity; and nucleosome array spacer activity. Acts upstream of or within chromosomal DNA methylation maintenance following DNA replication. Predicted to be active in chromatin and nucleus. Is expressed in several structures, including alar plate midbrain region; central nervous system; immature eye; margin; and pectoral fin musculature. Human ortholog(s) of this gene implicated in immunodeficiency-centromeric instability-facial anomalies syndrome 4. Orthologous to human HELLS (helicase, lymphoid specific).