Usually, not directly. In Bulb mode, the camera doesn’t know in advance when the exposure will end, so it generally can’t automatically trigger true rear-curtain sync based only on the shutter closing.

However, you can still get the same practical result by firing the flash manually just before ending the Bulb exposure. That gives you even more creative control: you can freeze the dancer at the most interesting point in the move rather than only at the very end. You can also fire multiple flashes during one Bulb exposure if your flash can recycle fast enough, or if you use multiple flashes.

From the community answers, one user reports doing this with Yongnuo 622C triggers when adding a 622C-TX, but not with the 622C alone. So with your setup, automatic second-curtain behavior may depend on adding the TX controller; otherwise, manual flash triggering is the reliable approach.