Predicted to enable receptor ligand activity. Involved in B cell differentiation and tumor necrosis factor-mediated signaling pathway. Acts upstream of or within B cell homeostasis; positive regulation of germinal center formation; and positive regulation of lymphocyte activation. Predicted to be located in several cellular components, including focal adhesion; perinuclear region of cytoplasm; and plasma membrane. Predicted to be active in extracellular space. Is expressed in genitourinary system. Used to study IgA glomerulonephritis and Sjogren's syndrome. Orthologous to human TNFSF13B (TNF superfamily member 13b). [provided by Alliance of Genome Resources, Apr 2022]