Enables double-stranded DNA binding activity and protein kinase C binding activity. Involved in positive regulation of transcription by RNA polymerase II. Predicted to be part of LUBAC complex. Human ortholog(s) of this gene implicated in glycogen storage disease. Orthologous to human RBCK1 (RANBP2-type and C3HC4-type zinc finger containing 1). [provided by Alliance of Genome Resources, Apr 2022]