How do I rear my horse?

When I'm scaling steep corners of mountains with my horse, it becomes sometimes inevitable to take a fatal leap, even when I steer backwards using the "back" key.

Is there a way to rear my horse, so I can "undo" the distance from the point of no return back to safety?

I am playing on the PC.


When pressing the jump button while standing (i.e. without moving), the horse will "rear up", and back off a bit. If you do it a couple of times, you will have enough room to make your turn safely.