SASH3 (SAM And SH3 Domain Containing 3) is a Protein Coding gene. The protein encoded by SASH3 contains a Src homology-3 (SH3) domain and a sterile alpha motif (SAM), both of which are found in proteins involved in cell signaling. This protein may function as a signaling adapter protein in lymphocytes. May function as a signaling adapter protein in lymphocytes.