Involved in trafficking and recycling of synaptic vesicles. The gene represented in this entry may be involved in disease pathogenesis. Genetic variants in TMEM230 and DNAJC13 have been found in the same large multigenerational family with adult-onset Parkinson disease. The pathological role of each gene and therefore the exact molecular basis of the disease is unclear. Belongs to the TMEM134/TMEM230 family.