Predicted to enable transmembrane signaling receptor activity. Predicted to be involved in several processes, including B cell differentiation; positive regulation of DNA-binding transcription factor activity; and positive regulation of immune response. Predicted to act upstream of or within regulation of B cell differentiation. Predicted to be located in cell surface. Predicted to be active in membrane raft. Predicted to be integral component of membrane. Orthologous to human NFAM1 (NFAT activating protein with ITAM motif 1). [provided by Alliance of Genome Resources, Apr 2022]