It does have some PPK features, but the extractor is too long for a PPK and the hammer isn't a PPK hammer. Also, there's a pin in the slide where there's no pin in a PPK slide.
The grip screw is in a somewhat unusual position. Most pistols have a cutout in the grip frame in that area which is why it's common to see screws at the top or bottom of the grips, or at the back of the grips instead of in the middle like the gun in the pic. The grip screw is positioned about right for a P230 or P232, but there are ways to tell that it's not a P230 or P232.
I don't know what it is.