The function of Ensembl gene identifier ENSG00000197253 (TPSB2, tryptase beta 2) is as follows. Tryptase is the major neutral protease present in mast cells and is secreted upon the coupled activation-degranulation response of this cell type. May play a role in innate immunity. {ECO:0000250, ECO:0000250|UniProtKB:P21845}.