Seems to inhibit myoblast differentiation. Transcriptional repressor of E-box-dependent transactivation of downstream myogenic bHLHs genes. Binds preferentially to the canonical E-box sequences 5'- CAGGTG-3' and 5'-CACCTG-3' (By similarity). . This is the function of Ensembl gene identifier ENSG00000185669 (SNAI3, snail family transcriptional repressor 3).