Endoplasmic reticulum-localized palmitoyltransferase that could catalyze the addition of palmitate onto protein substrates. hexadecanoyl-CoA + L-cysteinyl-[protein] = CoA + S-hexadecanoyl-L-cysteinyl-[protein] Probably maternally supplied, the zygotic expression is detected early during development at the 512-cell stage and is stable until 24h hpf at least. The DHHC domain is required for palmitoyltransferase activity. Belongs to the DHHC palmitoyltransferase family.