Enables protein homodimerization activity and protein-cysteine S-palmitoyltransferase activity. Involved in several processes, including peptidyl-L-cysteine S-palmitoylation; positive regulation of GABAergic synaptic transmission; and positive regulation of receptor localization to synapse. Acts upstream of or within protein targeting. Located in Golgi apparatus. Is expressed in early conceptus; genitourinary system; and ileum. Orthologous to human ZDHHC3 (zinc finger DHHC-type palmitoyltransferase 3). [provided by Alliance of Genome Resources, Apr 2022]