Autolysins are involved in some important biological processes such as cell separation, cell-wall turnover, competence for genetic transformation, formation of the flagella and sporulation. Could play a role in mother cell lysis with CwlC. Hydrolyzes the link between N-acetylmuramoyl residues and L-amino acid residues in certain cell-wall glycopeptides. Optimum pH is 7.0. Expressed during the late sporulation phase. Expression is GerE and sigma K-dependent. Belongs to the N-acetylmuramoyl-L-alanine amidase 2 family.