The 22-year-old defensive midfielder and Germany U21 international Dzenis Burnic will leave BVB to join second-tier outfit 1. FC Heidenheim with immediate effect.
The BVB academy product had recently been on loan at Dynamo Dresden.
Born in Hamm to Bosnian parents, Burnic has made seven Bundesliga appearances, 34 in the second tier (one goal) and three in the DFB Cup (one goal and two assists).
"We're delighted that another player from the BVB Academy has been able to make the leap to professional football. We wish Dzenis Burnic good health and every success for his career," declared BVB sporting director Michael Zorc.