It does send out MIDI, for example turn a sequencer destination to “MnO” for MIDI note out.
However, there’s a twist to it:
when routed to the Evolvers internal OSC pitch, the sequencer value corresponds to quarter note, so notes have to be entered by even numbers.
For MIDI notes, the sequencer value equals the sent MIDI note number, so it’s in semitones.
So the same sequencer line will sound different on internal sound engine and ext. MIDI.
There’s also a good write-up about it in “The Definitve Guide to Evolver” by Anu Kirk (a must read !).