No tilt, only shift - three lots of it.
That's the thing about the tilt + shift lens - you *don't* need to use both functions.
The miniature thing isn't all it's capable of!
What you're seeing from that photo is an effective focal length on FF of around 10mm - that's fisheye territory, but with NO distortion!
Have a look at the other picture next to it in my photostream - taken using the 24-70mm at 24mm - see how much narrower the field of vision is.
Lovin' the ant photo. Macro lens? EXIF says kit lens-ish.