Probably a dedicated protease for substrate gasdermin bGSDM; cleaves the bGSDM precursor, releasing the pore-forming moiety, which integrates into the membrane and triggers cell death. Involved in defense against bacteriophages (Probable). Expression of bacterial gasdermin (bGSDM) and this neighboring protease is toxic in E.coli (PubMed:35025633). Belongs to the peptidase C25 family.