label: an inositol-1-phosphodihydroceramide + GDP-alpha-D-mannose <=> an alpha-D-mannosylinositol-1-phosphodihydroceramide + GDP + H(+)
label_lc: an inositol-1-phosphodihydroceramide + gdp-alpha-d-mannose <=> an alpha-d-mannosylinositol-1-phosphodihydroceramide + gdp + h(+)