Enables histone binding activity. Involved in negative regulation of single stranded viral RNA replication via double stranded DNA intermediate and positive regulation of DNA methylation-dependent heterochromatin assembly. Predicted to be located in cytosol; heterochromatin; and nuclear lumen. Predicted to be active in nucleus. Is expressed in gonad; heart; and nervous system. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease axonal type 2Z. Orthologous to human MORC2 (MORC family CW-type zinc finger 2). [provided by Alliance of Genome Resources, Apr 2022]