Predicted to enable DNA binding activity and protein heterodimerization activity. Predicted to be a structural constituent of chromatin. Predicted to be involved in antimicrobial humoral immune response mediated by antimicrobial peptide and innate immune response in mucosa. Predicted to be located in cytosol; extracellular space; and nucleoplasm. Predicted to be part of nucleosome. Orthologous to human H2BC26 (H2B clustered histone 26); PARTICIPATES IN systemic lupus erythematosus pathway; INTERACTS WITH 6-propyl-2-thiouracil; aconitine; amitrole.