The function of TPPP3 (tubulin polymerization promoting protein family member 3, Ensembl gene identifier ENSG00000159713) is as follows. Regulator of microtubule dynamic that has microtubule bundling activity (PubMed:17105200, PubMed:19633818). Required for embryo implantation; possibly by regulating beta-catenin (By similarity). Also required for decidualization via regulation of beta- catenin (PubMed:30667362). {ECO:0000250|UniProtKB:Q9CRB6, ECO:0000269|PubMed:17105200, ECO:0000269|PubMed:19633818, ECO:0000269|PubMed:30667362}.