Yes, but I believe the only thing you can control with MIDI would be the notes and the basic expressive controls MOD wheel, pitch bend, and possibly aftertouch? There might be one or two other things but I think that's about it.
So basically you can "play" it through MIDI, but you can't "program" it via MIDI as all those controls are analog and not linked to any MIDI encoders.
And vice versa you can use the MiniBrute as a basic keyboard controller for other devices, synth modules, computer DAW, etc. But again, just for the keyboard notes plus the basic expressive controls. None of the knobs for programming the synth transmit any MIDI data to my knowledge.