Predicted to enable K63-linked polyubiquitin modification-dependent protein binding activity and zinc ion binding activity. Predicted to be involved in several processes, including positive regulation of I-kappaB kinase/NF-kappaB signaling; positive regulation of protein kinase activity; and response to lipopolysaccharide. Predicted to be located in cytosol and nucleoplasm. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and sensory organ. Orthologous to human TAB2 (TGF-beta activated kinase 1 (MAP3K7) binding protein 2). [provided by Alliance of Genome Resources, Apr 2022]