Gasdermin-like protein involved in heterokaryon incompatibility, a process that ensures that during spontaneous vegetative cell fusion, only compatible cells from the same colony survive (non-self-recognition) (PubMed:31636083, PubMed:32703806). In N.crassa, the rcd-1 locus exists as 2 incompatible alleles, rcd-1-1 (this entry) and rcd-1-2 (AC P0DW10) (PubMed:31636083). During the allorecognition process, forms a heterooligomer with rcd-1-2, thereby forming a functional gasdermin-like complex that binds to membranes and forms pores, triggering cell death (PubMed:32703806). Binds negatively charged phospholipids, such as cardiolipin and phosphatidylserine (PubMed:32703806). Also binds to phosphoinositides, preferentially to phosphatidylinositol-3-phosphate (PtdIns-3-P), PtdIns-5-P and PtdIns-3,5-P2 (PubMed:32703806). Heterooligomer; the heterooligomer with rcd-1-2 forms a ring-shaped pore complex when inserted in the membrane. Cytoplasmic in the absence of rcd-1-2 (PubMed:32703806). Forms a gasdermin-like pore that associates with the cell membrane in the presence of rcd-1-2 (PubMed:32703806). Belongs to the gasdermin family.