The function of Ensembl gene identifier ENSG00000167749 (KLK4, kallikrein related peptidase 4) is as follows. Has a major role in enamel formation (PubMed:15235027). Required during the maturation stage of tooth development for clearance of enamel proteins and normal structural patterning of the crystalline matrix (By similarity). {ECO:0000250|UniProtKB:Q9Z0M1, ECO:0000269|PubMed:15235027}.