Predicted to enable DNA binding activity and identical protein binding activity. Predicted to be involved in antimicrobial humoral immune response mediated by antimicrobial peptide; defense response to other organism; and nucleosome assembly. Predicted to be located in cytosol; extracellular space; and nucleoplasm. Predicted to be part of nucleosome. Orthologous to human H2BC13 (H2B clustered histone 13) and H2BC4 (H2B clustered histone 4). [provided by Alliance of Genome Resources, Apr 2022]