The law in North Korea states absolutely nothing about anything LGBT related (So nothing is explicitly illegal, but at the same time it seems that they simply do not believe in homosexuality as a concept or something)

In 2008, the DPRK voted against the UN's declaration on sexual orientation/gender identity , which condemns discrimination and harassment based on sexual orientation or gender identity. Based on this, I would say that they are anti-lgbt.

I'm guessing it's a very taboo topic over there anyways and yeah just not something they'd be very accepting of. They're generally very conservative and find the whole having a traditional family with children thing very important.

In general though (and I'm saying this as an ML), Marxist-Leninist states have not been very accepting of the LGBT, with the exception of Cuba recently. Hopefully this is something we can change once we have create a socialist project in the west :)