I had a look at her pedigree. Nothing much on there up front I'm afraid, which is well known or would give much of an indication what she might be good for. I know Boondocks have sold their horses in the past, for next to nothing. You might google a few names and see what you can come up with. Could be she is related to some known horses a little further back in her pedigree. There are some Sleepy Acres horses about.
But regardless of her background, she looks like a cute girl, who will make a lovely pet. If she moves well, you might put her to the cart.