Endoplasmic reticulum palmitoyl acyltransferase that probably catalyzes the addition of palmitate onto various protein substrates and is involved in a variety of cellular processes (By similarity). Could also function as a stearoyltransferase (By similarity). hexadecanoyl-CoA + L-cysteinyl-[protein] = CoA + S-hexadecanoyl-L-cysteinyl-[protein] L-cysteinyl-[protein] + octadecanoyl-CoA = CoA + S-octadecanoyl-L-cysteinyl-[protein] Probably maternally supplied, the zygotic expression becomes significative at 6 hpf and increases from 7.5 hpf to 24 hpf. The DHHC domain is required for palmitoyltransferase activity. The C-terminal di-lysine motif confers endoplasmic reticulum localization. Belongs to the DHHC palmitoyltransferase family.