Preheat the oven to 180ºC, and grease a loaf tin.
In a medium bowl, mix the flour, sugar, baking powder, bicarb, salt and poppy seeds (all the dry ingredients).
In a small bowl, mix the soy milk with the lime juice, and let it curdle. Mix in the oil, aquafaba and lime zest.
Pour the wet ingredients into the dry, and combine. Pour into the prepared loaf tin.
Bake for 45-50 minutes, until pulling away from edges and golden in colour, and a tester comes out clean.
Cool completely on a wire rack, before tipping out to cool a bit longer.
For the glaze, mix the icing sugar and lime juice, and drizzle over the cake. Sprinkle a little zest and poppy seeds for a pretty touch :)