Pallidin is involved in intracellular vesicle trafficking. PLDN cooperates with Syntaxin 13 that facilitates intracellular membrane fusion. A Few alternatively spliced transcript variations of this gene have been discovered however the full-length nature of several of these variants has not been determined. PLDN takes part in the creation of lysosome-related organelles， for example melanosomes and platelet-dense granules. PLDN is known to cooperate with Dysbindin， BLOC1S1， STX12， CNO， MUTED， SNAPAP and BLOC1S2.
