In this situation, are you obliged to give right of way to the vehicle approaching from the right side?

The D-2 sign 'end of priority road' visible on the right informs you that you are losing your right-of-way privilege. This means you are approaching an equivalent intersection where general rules apply. In such a situation, according to Art. 25 para. 1 of the Road Traffic Act, you are obliged to yield the right of way to a vehicle approaching from the right.