Predicted to enable NF-kappaB binding activity. Predicted to be involved in negative regulation of NF-kappaB transcription factor activity. Predicted to be located in cytoplasm and nucleus. Is expressed in several structures, including genitourinary system; heart; liver; lung; and spleen. Orthologous to human COMMD6 (COMM domain containing 6). [provided by Alliance of Genome Resources, Apr 2022]