Found this hidden behind a cabinet in our new home. What is it used for? Found this in our new house. It pulls out from the side of our cabinet and extends as shown.

There’s some random screw holes in it and a light on the other side (that matches our under cabinet lights).

Some additional info…the cabinet is probably 2” inches deep and 2.5’ tall by 2’ wide. The board that pulls out extends about 18” past the cabinet.

To debunk the spice rack idea: it faces away from the kitchen, and doesn’t have a screw pattern that would support shelves. It also doesn’t make sense with the board that pulls out. To debunk the gun rack: why the board that pulls out? Also 2” doesn’t seem like a lot – but I’m not particularly familiar with guns.

To debunk the sun blocker: Why the screw holes? Or the depth on the cabinet?
Also, it was a foreclosure, so we can’t ask the previous owner.
Might be wrong & it might be one of the things suggested – but it just doesn’t really make sense.
PS: it’s our new husky puppy – not a cat lol