Predicted to enable NF-kappaB binding activity. Predicted to be involved in negative regulation of DNA-templated transcription; negative regulation of NF-kappaB transcription factor activity; and tumor necrosis factor-mediated signaling pathway. Predicted to be located in cytoplasmic vesicle. Is expressed in several structures, including genitourinary system; gut; hemolymphoid system gland; liver; and lung. Orthologous to human COMMD7 (COMM domain containing 7).