Predicted to enable lipopolysaccharide binding activity. Predicted to be involved in negative regulation of inflammatory response to antigenic stimulus and proteasomal protein catabolic process. Predicted to be located in ciliary basal body; mitochondrion; and nucleoplasm. Predicted to be part of proteasome core complex, beta-subunit complex. Predicted to be active in nucleus. Orthologous to human PSMB4 (proteasome 20S subunit beta 4). [provided by Alliance of Genome Resources, Apr 2022]