Predicted to enable polyubiquitin modification-dependent protein binding activity. Predicted to be involved in several processes, including cellular response to lipopolysaccharide; negative regulation of I-kappaB kinase/NF-kappaB signaling; and toll-like receptor signaling pathway. Orthologous to human TNIP3 (TNFAIP3 interacting protein 3). [provided by Alliance of Genome Resources, Apr 2022]