Palmitoyltransferase that catalyzes the addition of palmitate onto various protein substrates, such as NCDN and NLRP3 (PubMed:39173637). Has a palmitoyltransferase activity toward NCDN and regulates NCDN association with endosome membranes through this palmitoylation (By similarity). Acts as an activator of the NLRP3 inflammasome by mediating palmitoylation of 'Cys-130' and 'Cys-958' of NLRP3, thereby promoting NLRP3 phosphorylation and activation by NEK7 (PubMed:39173637). {ECO:0000250|UniProtKB:Q8R0N9, ECO:0000269|PubMed:39173637}. Also has a palmitoyltransferase activity-independent function in DNA virus-triggered and CGAS-mediated innate immune response (PubMed:25299331). Functions as an activator of STING1 by promoting its cGAMP-induced oligomerization and the recruitment of downstream signaling components (PubMed:25299331). . This is the function of Ensembl gene identifier ENSG00000159714 (ZDHHC1, zDHHC palmitoyltransferase 1).