Transcription factor required in several developmental processes. Involved in axis formation during embryonic development by inhibiting tle3a/gro2 from binding to tcf7l1a, thereby facilitating ctnnb1-mediated transcription of canonical Wnt/CTNNB1 signaling target genes. Regulates convergent extension movements and hypaxial myogenesis during gastrulation by activating non-canonical Wnt signaling via wnt5b. Required for the formation of myofibrils and fusion of fast muscle precursor cells, potentially via transcriptional regulation of genes specific to thick and thin myofilaments. Regulates the migration of the posterior lateral line primordium during embryonic development, possibly via regulation of cxcl12a/sdf1a expression in the posterior lateral mesoderm, thereby modulating the deposition of neuromasts at correct intervals