This is probably really, really easy or really hard. Either way I'm missing it

I'm trying to raycast from a gameobject but at a slight angle. I see in the Raycast action there is a direction box so I thought I could simply put a rotation vector in there (like 0,45,0), but it's there wrong type as it's drawing a line in Y with length 45. Not what I wanted.
I guess my question is, how can I convert an rotation Vector3 angle (like 0,45,0) into a direction Vector3?
Is there something I'm missing?
If not, then a Convert Rotation to Direction action would be great

Thanks